Orion Atlas EQ-G Equatorial Mount Instruction Manual

INSTRUCTION MANUAL

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Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA Toll Free USA & Canada: (800) 447-1001 International: +1(831) 763-7000 Customer Support: support@telescope.com AN EMPLOYEE-OWNED COMPANY Copyright © 2020 Orion Telescopes & Binoculars. All Rights Reserved. No part of this product instruction or any of its contents may be reproduced, copied, modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.

IN 279 Rev. F 09/20 Saddle

Dovetail mounting bar Saddle clamp knobs

Declination setting circle Dec clutch lever

Front opening Drive panel

Right Ascension setting circle Counter weight shaft lock lever

R. A. clutch lever Counter weight lock knobs Polar Scope

Latitude scale Counterweights

Altitude adjustment Safety stop L-bolts

Mount attachment Azimuth adjustment knob (x2) knob

Center Column SynScan hand controller

Accessory tray/spreader

Leg lock levers (x3)

Figure 1. The Atlas EQ-G mount

2 Table of Contents 1. Unpacking 1. Unpacking ...... 3 The entire mount will arrive in two boxes, one containing the tripod and the other containing the equatorial mount and hand 2. Parts List ...... 3 controller. Be careful unpacking the boxes. We recommend 3. Assembly ...... 4 keeping the boxes and original packaging. In the event that the mount needs to be shipped to another location, or returned 4. Installing a Telescope on the Mount ...... 5 to Orion for warranty repair, having the proper packaging will 5. Balancing the Telescope ...... 6 ensure that your mount will survive the journey intact. 6. Operating the Atlas EQ-G ...... 7 Make sure all the parts in the Parts List are present. Be sure to check the box carefully, as some parts are small. If any- 7. The SynScan GoTo Hand Controller . . . 9 thing appears to be missing or broken, immediately call Orion 8. Technical Specifications ...... 10 Customer Support (800-676-1343) or email support@telescope.com for assistance.

Congratulations on your purchase of the 2. Parts List venerable Orion Atlas EQ-G Equatorial GoTo Mount and Tripod! This solidly built, high- Box 1: Tripod quality mount is equipped with precision optical Qty. Item encoders and dual-axis stepper motors to provide 1 Tripod high pointing accuracy, fast slewing, and smooth, 2 Counterweights (11.8 lbs. each) accurate tracking of celestial objects. With the 1 Tripod accessory tray/spreader included SynScan GoTo hand controller and its 42,900-object database, this mount will provide Box 2: Equatorial Mount years of enjoyable, productive observing or 1 Equatorial mount imaging performance with whatever optical tube 1 Tube ring mounting plate you choose to install on it. 1 12V DC Power cable These instructions will help you set up and properly 1 Counterweight shaft extension, 7-1/4" (184mm) use your Atlas mount. Please read them thorough- 1 SynScan GoTo hand controller ly before getting started. Note that the SynScan 1 Hand controller coil cable GoTo hand controller has its own, separate user manual, which thoroughly explains its features and 1 Hand controller bracket operation. 1 Allen key, 1.5mm 1 Allen key, 4mm

WARNING: Never look directly at the Sun through your telescope or its finder scope – even for an instant – without a professionally made solar filter that completely covers the front of the instrument, or perma- nent eye damage could result. Young children should use this telescope only with adult supervision.

3 a. Mount attachment Gap Center knob support shaft

Azimuth adjustment Tray knobs arm Tray Knob Washer

Align gap with post Figure 3. Install the accessory tray, flat side up, as shown. The three tray arms should press against the tripod legs.

Post

b. Strap with Bracket hook-and-loop fastener Figure 2. a) Loosen the azimuth adjustment knobs to create at least a ½” gap. b) Orient the mount head so that the gap aligns with the metal post on the tripod. 3. Assembly Refer to Figure 1 as needed during the assembly process. 1. Stand the tripod upright and spread the legs out as far as they will go. Make certain that the leg lock levers are tightened. Keep the tripod legs at their shortest (fully retracted) length, for now; you can extend them to a more desirable Figure 4. The hand controller bracket should be fastened to a length later, after the mount is fully assembled. tripod leg. 2. Loosen the two azimuth adjustment knobs on the mount head until there is ½" or more of space between the ends Attaching the Accessory Tray/Spreader and the (Figure 2a). Then place the mount on the tripod, aligning Hand Controller Bracket the metal post on the tripod with the gap between the two 1. Remove the knob and washer from the bottom of the cen- azimuth adjustment knobs (Figure 2b). ter support shaft. Slide the tripod support tray up the bottom of the shaft until the three tray arms are touching the 3. Thread the center support shaft up through the tripod head legs of the tripod. The flat side of the support tray should and into the bottom of the equatorial mount until tight. Use be facing up. Make sure the “V” of each tray arm is against the upper knob on the center support shaft to do this. The a tripod leg. Place the washer on the center support shaft equatorial mount should now be firmly connected to the tripod. against the tray, and follow it by threading the knob all the

4 1. Loosen the counterweight shaft lock lever (see Figure 1) and fully extend the shaft. Then re-tighten the lock lever. 2. Loosen the right ascension (R.A.) lock lever and rotate the R.A. axis until the counterweight shaft is pointing toward the ground, as in Figure 1. 3. Remove the “toe saver” safety stop from the end of the counterweight shaft. 4. The Atlas mount comes with a 7-1/4" (184mm) counter- Extension weight shaft extension, which can be installed at this point if necessary for balancing heavier payloads (Figure 5). Ensure that the extension is tightly secured before installing counterweights. 5. Loosen the counterweight’s lock knob and slide one or both counterweights onto the counterweight shaft as needed to balance your instrument. (See Section 5 for details on how to balance the telescope.) Retighten the Figure 5. The counterweight shaft extension threads into the end lock knob to secure the counterweight on the shaft. of the counterweight shaft. 6. Replace the safety stop on the end of the counterweight shaft. The safety stop prevents the counterweights from falling on your foot if the lock knobs happen to loosen. Tube ring attachment screw 4. Installing a Telescope on the Mount The Atlas EQ-G mount is designed to hold a telescope pay- Flat washer load of up to 40 lbs. For heavier telescopes, the mount may not provide sufficient stability for steady viewing or imaging. Lock Before installing a telescope, be sure that: washer • The mount is in the “home” position, with counterweight Optical axis offset shaft pointing toward the ground. adjustment screws • The counterweights are installed on the counterweight Figure 6. The tube ring mounting plate, or dovetail mounting bar, shaft and have been moved to the bottom end of the shaft. shown with tube ring (sold separately) attached. • The R.A. axis is secured by tightening the R.A. clutch lever. way up the center support shaft until it is tight against the tray (Figure 3). The tripod support tray provides additional The dovetail mounting bar (a.k.a. tube ring mounting bar) stability for the tripod, and holds up to five 1.25" eyepieces included with the mount allows attachment of tube rings (sold and two 2" eyepieces. separately) that hold a telescope’s optical tube. Some telescopes come with their own mounting bar and tube rings, 2. Using the bubble level on the mount (see Figure 10), level or have a built-in dovetail bar and do not need tube rings; in the mount by adjusting the length of the tripod legs as either case you will not need the included dovetail bar. needed. 1. If using the included dovetail mounting bar, attach the tube 3. Strap the included hand controller bracket to a tripod leg rings to the bar using the screws that came with the tube above the tripod center support tray using the hook-and- rings. The screws should go through the center holes in loop strap, as shown in Figure 4. the ends of the mounting bar and rethread into the tube Warning: The accessory tray/spreader will ensure the tri- rings. Note that the side of the mounting bar with the pod legs remain firmly expanded, which will prevent the central “groove” will be facing up (Figure 6). Use a small tripod from accidentally toppling over. When using the At- wrench to secure the tube rings to the mounting bar. las mount, it is important to always install the accessory Note: The tube ring mounting bar has four optical axis tray/spreader before attaching the telescope. offset adjustment screws located at each corner of the mounting plate. The screws should be oriented so that the Installing the Counterweights threaded shaft extends upward through the top surface of Always attach the counterweight(s) before installing your tele- the tube ring mounting bar. If the mounting bar arrives with scope on the mount, or the scope could swing downward by the optical axis offset screws installed backwards, reverse gravity and crack into the tripod! their orientation to that shown in Figure 6 before proceed-

5 ing. For now, confirm that all four adjustment screws are sufficiently unthreaded so that the ends of their threaded Declination setting shafts are flush with the top surface of the mounting bar. circle 2. Loosen the two clamp knobs on the dual-width saddle plate (Figure 7) until the width of one of the dovetail grooves is slightly wider than the width of the dovetail bar on your telescope. 3. While holding the telescope, seat the dovetail bar of the telescope into the proper groove of the saddle. The lower groove is for a “narrow” (Vixen style), 45mm width dovetail bar and the upper groove is for a “wide” (Losmandy style), 75mm bar. (The included dovetail bar fits the narrow groove.) Then tighten the two clamp knobs to secure the dovetail bar in the saddle. Warning: Keep supporting the telescope until you are sure Right ascension it has been firmly attached to the saddle! setting circle

5. Balancing the Telescope Figure 9. Use the right ascension and declination setting circles to To minimize stress on the motor drive system and ensure find objects without the GoTo electronics, if desired smooth, accurate movement of a telescope on both axes of the mount, it is imperative that the optical tube be properly balanced. We will first balance the telescope with respect to Altitude scale

Wide Altitude adjustment L-bolts Azimuth Saddle adjustment clamp knobs knobs Bubble level

Narrow

Figure 10. Use the altitude adjustment L-bolts and the azimuth adjustment knobs when polar aligning the mount.

the right ascension (R.A.) axis, then the declination (Dec.) Figure 7. The dual-width saddle accommodates narrow or wide axis. dovetail mounting bars or plates. 1. Keeping one hand on the telescope optical tube, loosen Dec.clutch lever the R.A. clutch lever (refer to Figure 8). Make sure the Dec. (not shown) clutch lever is tightened, for now. The telescope should now be able to rotate freely about the R.A. axis. Rotate it Front until the counterweight shaft is parallel to the ground (i.e., opening Right Ascension horizontal). (R.A.) axis R.A. clutch 2. Now loosen the counterweight lock knob and slide the lever weight(s) along the shaft until it exactly counterbalances

Polar axis the telescope. That’s the point at which the shaft remains finder scope horizontal even when you let go with both hands. Once balance is achieved, retighten the counterweight lock Latitude (Dec) axis knob. scale Latitude 3. To balance the telescope on the Dec. axis, first tighten the Azimuth adjustment R.A. clutch lever, with the counterweight shaft still in the Declination adjustment knobs (2) L-bolts horizontal position. Then with one hand on the telescope Figure 8. The R.A. and Dec axes of the Atlas EQ-G and related parts. optical tube, loosen the Dec. clutch lever and check for

6 Little Dipper (in Ursa Minor)

Big Dipper N.C.P. (in Ursa Major) Polaris

Pointer Cassiopeia Stars Figure 11. For northern hemisphere viewers, you can find the pole star, Polaris, by extending an imaginary line from the Big Dipper’s “pointer stars,” as shown. Polaris lies within 1 degree of the North Celestial Pole (NCP). Figure 13. The reticle of the polar axis scope shows the positions of the Big Dipper and Cassiopeia relative to Polaris and the north celestial pole (NCP). Eyepiece Alignment Focus lock Objective focus ring setscrew (3) ring lens 6. Operating the Atlas EQ-G

Moving the Mount Manually Loosen the clutch levers on the R.A. and Dec axes to rotate the mount by hand. Both levers should be tightened for elec- tronic operation of the mount via the hand controller.

Locating Objects Using the Setting Circles With a computerized GoTo mount like the Atlas EQ-G, you do not need setting circles to locate objects. The SynScan computerized object locator will do that for you! But should you Figure 12. The polar axis finder scope wish to find objects “the old fashioned way,” or need to locate an object that is not in the SynScan database based on its any rotation. If there is some, adjust the telescope forward celestial coordinates, you can use the R.A. and Dec. setting or back in the saddle or in its tube rings until it remains circles to pin-point the desired object (Figure 9). horizontal when you carefully let go of it. You may want First, you will need to calibrate the setting circles. Do this by to rotate the RA axis back to the home position (coun- simply pointing the telescope at a celestial object with known terweight shaft pointing downward) before making any R.A and Dec. coordinates, which you can look up in a star adjustments to the position of the telescope in the saddle atlas or on the internet. Then loosen the locking thumbscrew or tube rings. on each setting circle and turn the setting circles so the val- The telescope is now balanced on both axes. When you loos- ues for R.A. and Dec. line up with the arrow marks just below en the clutch lever on one or both axes and manually point the each setting circle. Then re-tighten the setting circle locking telescope, it should move without resistance and should not thumbscrews. drift from where you point it. For the R.A, setting circle, note that there are two sets of NOTE: For imaging, it is recommended that the mount numbers above the hash marks. Use the lower set of numbers be slightly IMBALANCED – weighting the R.A. axis to the when operating the mount in the Southern Hemisphere; use EAST and the Dec. axis in either direction. The imbalance the upper set of numbers when operating the mount in the should be very slight and should be implemented after Northern Hemisphere. you have found the correct balance point using the above The Dec. setting circle scale features four quadrants from 0 procedure. This weight offset keeps a minimal load on the to 90-degrees each. Users should use the proper quadrant gears at all times, which improves guiding behavior. when calibrating the Dec. setting circle. So for the R.A. axis, if the telescope is on the west side of the mount, slide the counterweight down the counterweight shaft Adjusting the Mount’s Latitude and Azimuth (which is on the east side of the mount) a bit – 3 centimeters Setting the R.A. axis to the correct latitude is necessary for or so should be enough. If the telescope is on the east side of accurate polar alignment and tracking. Refer to the latitude the mount, slide the counterweight up the shaft by the same scale while rotating the latitude adjustment levers to the prop- distance. er tilt (Figure 10). Loosen one lever while tightening the other. The latitude should be set to the same latitude at which you are located.

7 The two azimuth adjustment knobs allow fine movement of the mount in azimuth (side to side). This is useful in polar alignment for placing Polaris in the correct position on the polar scope’s reticle. Make sure the mount attachment knob (see Figure 3) is ever so slightly loosened to permit the mount to rotate when turning the azimuth adjustment knobs. When you look at the night sky, you no doubt have noticed that the stars appear to move slowly from east to west over time. Front That apparent motion is caused by the Earth’s rotation (from opening west to east). An equatorial mount is designed to compensate for that motion, allowing you to easily “track” the movement of astronomical objects, thereby keeping them from drifting out of your telescope’s field of view while you’re observing. This is accomplished by slowly rotating the telescope on its right ascension (R.A.) axis, using the built in motor drive. But Figure 14. Rotate the declination axis until the hole in the first the R.A. axis of the mount must be aligned with the Earth’s declination shaft lines up with the front opening of the housing. rotational (polar) axis—a process called polar alignment. The equatorial mount is now polar aligned for casual observ- Polar Alignment ing. More precise polar alignment is recommended for astrophotography. For this we recommend using the polar axis For Northern Hemisphere observers, approximate polar align- finder scope. ment is achieved by pointing the mount’s right ascension axis at the North Star, or Polaris. It lies within 1° of the north celes- From this point on in your observing session, you should not tial pole (NCP), which is an extension of the Earth’s rotational make any further adjustments to the latitude or azimuth of the axis out into space. Stars in the Northern Hemisphere appear mount, nor should you move the tripod. Doing so will undo the to revolve around the NCP. polar alignment. The telescope should be moved only about its R.A. and Dec. axes. To find Polaris in the sky, look north and locate the pattern of the Big Dipper (Figure 11). The two stars at the end of the The Polar Axis Finder Scope “bowl” of the Big Dipper point right to Polaris. The Atlas mount comes with a polar axis finder scope (Figure Observers in the Southern Hemisphere aren’t so fortunate to 12) housed inside the right ascension axis of the mount. have a bright star so near the south celestial pole (SCP). The When properly aligned and used, it makes accurate polar star Sigma Octantis lies about 1° from the SCP, but it is barely alignment quick and easy to do. The polar scope included visible with the naked eye (magnitude 5.5). with the Atlas mount can be used for polar alignment in the For general visual observation, an approximate polar align- Northern Hemisphere. That is, the polar scope’s reticle graph- ment is sufficient. ic has reference star patterns that are useful for aligning in the Northern Hemisphere (Figure 13). Remove the cap that cov- 1. Level the equatorial mount by adjusting the length of the ers the polar scope to view through it, and be sure to remove three tripod legs. Use the bubble level built into the base of the cap on the front opening of the mount housing. the mount to determine when the mount is level. 2. There are two latitude adjustment L-bolts (see Figure 8); Aligning the Polar Axis Scope to the R.A. Axis loosen one while tightening the other. By doing this you Before using the polar scope for polar alignment, the polar will adjust the latitude, or altitude angle, of the mount. scope itself must be aligned to the mount’s R.A. axis. At the Continue adjusting the mount until the pointer on the lati- center of the reticle is a cross, which you’ll use in the proce- tude scale is set at the latitude of your observing site. If dure below to align the polar scope to the R.A. axis. you don’t know your latitude, consult a geographical atlas or the Internet to find it. For example, if your latitude is 35° 1. Loosen the Dec. clutch lever and rotate the optical tube North, set the pointer to 35. The latitude setting should not about the declination axis until you have a clear view have to be adjusted again unless you move to a different through the polar axis finder scope (Figure 14). Tighten viewing location some distance away. the Dec. clutch lever. 2. Look through the polar finder at a distant object (during 3. Loosen the Dec. lock lever and rotate the telescope’s optical tube until it is parallel with the right ascension axis, as the day) and center it in the cross hairs. You may need it is in Figure 8. to adjust the latitude adjustment L-bolts and the azimuth adjustment knobs to do this. Focus the polar finder by 4. Move the tripod so the telescope tube and right ascen- rotating its eyepiece. sion axis point roughly at Polaris. If you cannot see Polaris directly from your observing site, consult a compass and 3. Rotate the mount 180° about the R.A. axis. It may be con- rotate the tripod so the telescope points north. venient to remove the counterweights and optical tube before doing this.

8 4. Look through the polar finder again. Is the object being R.A. axis until the reticle is oriented with the sky. For larger viewed still centered on the cross hairs? If it is, then no optical tubes, you may need to remove the tube from the further adjustment is necessary. If not, then look through mount to prevent it from bumping into the mount during the polar finder while rotating the mount about the R.A. this procedure. axis. You will notice that the object you have previously 7. Now use the azimuth adjustment knobs and the latitude centered moves in a circular path. Use the 1.5mm Allen L-bolt on the mount to position Polaris inside the tiny circle key to adjust the three alignment set-screws on the polar on the finder’s reticle. You must first loosen – only very axis finder Figure( 12) move the object HALF the distance slightly! – the knob underneath the mount head on the back to the cross. Then you will re-center the object on the center support shaft to use the azimuth adjustment knobs. cross as in Step 2 using the latitude adjustment L-bolt and Once Polaris is properly positioned within the reticle, you azimuth adjustment knobs. are precisely polar aligned. Retighten the knob under the 5. Repeat this procedure until the position that the cross mount and lightly tighten the altitude lock knobs on the hairs point to does not rotate off-center when the mount is sides of the mount. rotated in R.A. Additional Note Regarding Focusing the Polar Notes: Axis Finder Scope • When adjusting the Allen screws, loosen one screw only ¼ The polar axis finder scope is normally focused by simple of a turn, and then tighten the other two. rotation of the eyepiece focus ring. However, if after adjust- • Do not over tighten the Allen screws as it might damage ing the focus ring you find that the image of the reticle is the reticle plate in the polar scope. sharp, but the stars are out of focus, then you must adjust • Do not loosen one screw completely or loosen more than the focus of the polar axis finder’s objective lens. To do this, one screw at a time, or the reticle plate in the polar scope first remove the polar axis finder from the mount by unthread- will be disengaged and further adjustment is impossible. ing it. Look through the polar axis finder at a star (at night) or distant object at least 1/4 mile away (during daylight). Use the • If the reticle plate does disengage, remove the eyepiece focus ring to bring the reticle into sharp focus. Now, polar scope’s eyepiece by turning the knurled ring loosen the focus lock ring (Figure 12) and thread the entire counterclockwise and engage the reticle plate again. objective end of the finder inward or outward until images appear sharp. Re-tighten the focus lock ring. Once the polar Polar Alignment Using the Polar Scope axis finder’s objective lens is focused, it should not need to be 1. Set up the Atlas EQ-G mount. It is recommended to load adjusted again. the mount with the counterweights and telescope (in that order!) and level the mount prior to polar alignment. Powering the Atlas EQ-G 2. Move the tripod so the telescope tube and right ascension The Atlas EQ-G requires a 12V DC power supply (tip positive) axis point roughly at Polaris (for Northern Hemisphere). capable of producing continuous current of 2 amps. We rec- You may need to adjust the latitude adjustment L-bolts and ommend using a portable rechargeable field battery such as azimuth adjustment knobs to accomplish this. the Orion Dynamo Pro, or an AC-to-12V DC adapter if you will be using the mount near a 120V wall outlet. 3. Loosen the Dec. clutch lever and rotate the optical tube until the hole in the Dec. shaft lines up with the front open- If using a field battery, use the supplied 12V DC power cable, ing of the housing (Figure 14), and you have a clear, which has a male cigarette lighter plug on one end, which unobstructed view through the polar scope. Then retighten plugs into the battery, and a 5.5/2.1mm right-angle connec- the Dec. clutch lever. tor on the other end, which plugs into the power port on the mount (Figure 15). turn on the battery, then press the power 4. Turn on the power to the mount to illuminate the polar switch on the mount to the ON position. scope. The reticle pattern should now be visible in the polar scope. If the image appears blurred, rotate the polar Note: The power indicator LED on the mount will begin to scope’s knurled eyepiece to focus it. blink slowly when the battery power is low, and rapidly 5. Now, sight Polaris in the polar axis finder scope. If it’s not when the battery power gets extremely low. Recharge or in the field of view, move the mount left or right using the replace the battery as needed. azimuth adjustment knobs, and adjust the altitude up or down using the latitude adjustment L-bolt until Polaris is 7. The SynScan GoTo visible in the polar scope. 6. Note the constellation Cassiopeia and the Big Dipper in Hand Controller the reticle. They do not appear in scale, but they indicate The Atlas EQ-G mount equipped with the SynScan GoTo the general positions of Cassiopeia and the Big Dipper hand controller provides easy, computerized location of thou- relative to the NCP in the sky. Rotate the reticle so the sands of night sky objects such as planets, nebulae, star clus- star patterns depicted match their current orientation in the ters, galaxies, and more for viewing through your telescope. sky when viewed with the naked eye. To do this, release The SynScan GoTo Hand Controller and internal dual-axis the R.A. clutch and rotate the main telescope around the motors and optical encoders allow you to automatically point

9 your telescope at a specific object, or tour the skies with push- button simplicity. The user-friendly menu allows automatic slewing to over 42,000 objects. Even inexperienced astrono- mers will find themselves quickly mastering the variety of features the GoTo hand controller offers in just a few observing sessions. For detailed information about the SynScan GoTo Hand Controller, see the manual for the SynScan.

Autoguiding with the Atlas EQ-G The Atlas mount is equipped with an ST-4 compatible port for connecting an autoguiding camera, for use in astrophotography. The guide cable supplied with your guide camera will have an RJ-12 connector that plugs into the autoguider modu- lar jack on the mount’s drive panel (Figure 15). For more information about autoguiding, please refer to the manual that came with your guide camera.

8. Technical Specifications

Mount Type German equatorial Payload (Counterweights excluded) 40 lbs. (about half that for Figure 15. The Atlas EQ-G mount’s drive panel astrophotography) This device complies with Part 15 of the FCC Rules. Operation Latitude Adjustment Range 10º to 65º is subject to the following two conditions: (1) this device nay Mount Head Weight (Tripod excluded) 38.2 lbs. not cause harmful interference, and (2) this device must accept any interference received, including interference that Tripod 2-inch stainless steel legs, may cause undesired operation. extendable, 16.3 lbs. Changes of modifications not expressly approved by the Total Assembled Weight 54 lbs. party responsible for compliance could void the user’s Counterweight 11.8 lbs. x 2 authority to operate the equipment. Counterweight Shaft 18mm diameter, length Note: This equipment has been tested and found to com- 280mm + 184mm extension ply with the limits for a Class B digital device, pursuant to Power Requirement DC 11-15V, 2A Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in Motors Microstep driven 1.8º a residential installation. This equipment generates, uses stepper motors and can radiate radio frequency energy and, if not installed Gear Ratio 705 and used in accordance with the instructions, may cause Resolution 9024000 Counts/Rev., harmful interference to radio communications. However, ~ 0.14 arc-second there is no guarantee that interference will no occur in a particular installation. If this equipment does cause harm- Maximum Slewing Speed 3.4 degrees/second ful interference to radio or television reception, which can Tracking Rates Sidereal, solar, lunar be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by Auto-guiding Speeds 0.125X, 0.25X, 0.5X, one or more of the following measures: 0.75X, 1X Periodic Error Correction Yes • Reorient or relocate the receiving antenna. Hand Controller SynScan • Increase the separation between the equipment and Database >42000 Objects receiver. Celestial Object Catalogs Messier, NGC, IC, SAO, • Connect the equipment into an output on a circuit Caldwell, Double Star, different from that to which the receiver in connected. Variable Star, Named Star, • Consult the dealer or an experienced radio/TV tech Planets nician for help. A shielded cable must be used when connecting a peri pheral to the serial ports.

10 11 One-Year Limited Warranty

This Orion product is warranted against defects in materials or workmanship for a period of one year from the date of purchase. This warranty is for the benefit of the original retail purchaser only. During this warranty period Orion Telescopes & Binoculars will repair or replace, at Orion’s option, any warranted instrument that proves to be defec- tive, provided it is returned postage paid. Proof of purchase (such as a copy of the original receipt) is required. This warranty is only valid in the country of purchase. This warranty does not apply if, in Orion’s judgment, the instrument has been abused, mishandled, or modified, nor does it apply to normal wear and tear. This warranty gives you specific legal rights. It is not intended to remove or restrict your other legal rights under applicable local consumer law; your state or national statutory consumer rights governing the sale of consumer goods remain fully applicable. For further warranty information, please visit www.OrionTelescopes.com/warranty.

Corporate Offices: 89 Hangar Way, Watsonville CA 95076 - USA Toll Free USA & Canada: (800) 447-1001 International: +1(831) 763-7000 Customer Support: [email protected] AN EMPLOYEE-OWNED COMPANY Copyright © 2020 Orion Telescopes & Binoculars. All Rights Reserved. No part of this product instruction or any of its contents may be reproduced, copied, modified or adapted, without the prior written consent of Orion Telescopes & Binoculars.